Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quando esv ingolstadt é o oberbayern b, o que é o niederbayern?
 ###Tabelas: CREATE TABLE southern_bavaria (southern_bavaria_id AUTO_INCREMENT PRIMARY KEY, Season VARCHAR, Oberbayern A VARCHAR, Oberbayern B VARCHAR, Niederbayern VARCHAR, Schwaben VARCHAR, Oberpfalz VARCHAR) CREATE TABLE churches_belonging_to_the_assembly_of_canonical_bishops_of_north__&__central_america (churches_belonging_to_the_assembly_of_canonical_bishops_of_north__&__central_america_id AUTO_INCREMENT PRIMARY KEY, Adherents INT, Regular Attendees INT, % of adherents VARCHAR, Monasteries INT, Parishes INT, Average Parish Size INT) CREATE TABLE consolation_night_series_lake_oval_winners_1956–1971 (consolation_night_series_lake_oval_winners_1956–1971_id AUTO_INCREMENT PRIMARY KEY, Year INT, Winners VARCHAR, Grand Finalist VARCHAR, Scores VARCHAR, Venue VARCHAR, Crowd INT, Margin INT, Season Result VARCHAR) CREATE TABLE university_location_date_established (university_location_date_established_id AUTO_INCREMENT PRIMARY KEY, University VARCHAR, Location VARCHAR, Established INT, Endowment as of 2008 VARCHAR, Campus Area (acres) INT, Kiplinger's Top 100 Values VARCHAR, Enrollment as of 2008 INT) CREATE TABLE construction_and_seating_capacity (construction_and_seating_capacity_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Stadium VARCHAR, Capacity VARCHAR, Location VARCHAR, Home Team VARCHAR)  
SELECT Niederbayern FROM southern_bavaria WHERE Oberbayern B = ESV Ingolstadt